package com.ruanjian.reggie.config;

import com.ruanjian.reggie.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;

import org.springframework.context.annotation.Configuration;

import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;


@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

    /**
     * 设置静态资源的映射
     * @param registry
     */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("开始进行静态资源的映射");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");

    }

    /**
     * 扩展mvc框架的消息转化器
     * @param converters
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("扩展消息转换器");
        //创建消息装换器对象
        MappingJackson2HttpMessageConverter messageConverter= new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用jackson将对象转化为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }


}
